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Romashka-Z-Leto [24]
3 years ago
8

Please simplify, 50 points. (sin Θ - cos Θ) - (sin Θ + cos Θ)^2

Mathematics
1 answer:
Amanda [17]3 years ago
8 0

Answer:

 

Using x for Θ:  

(sinx - cosx)^2 - (sinx + cosx)^2  

= (sin^2 x - 2sinxcosx + cos^2 x) - (sin^2 x + 2sinxcosx + cos^2 x)  

= - 2 sinx cosx - 2 sinx cosx  

= - 4 sinx cosx  

= - 2sin(2x)  

Step-by-step explanation:

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